The VT117 'Traditional' TRV is popular within the domestic market, due to its proven reliability.
Its easy to grip TRV head, energy saving 'green' button and unobtrusive design make it suitable for any heating installation.

According to Building Regulations Part L1 thermostatic radiator valves should be fitted "on all radiators except in rooms with a room thermostat" to satisfy either Minimum or Best Practice installations. The valve can be mounted vertically or horizontally at either end of a radiator. To work correctly, the VT117 should be installed to a two pipe heating system and also have a free flow of air around the head to sense temperature.